US3531311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying gelled water soluble coatings as parting agents
Assignee: Apyrco Inc
•
Filing: 1967-10-31
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Granted: 1970-09-29
•
Expires: 1987-10-31
Abstract
No abstract record available.
Inventors
- 👤 William L Prior
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:57
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/32; B05D1/322; B05D1/327; B05B; B05B12/00; B05B12/16; B05B12/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB1084301A
Cited
US2426391A
Cited
US2795206A
Cited
GB844273A
Cited
US2991188A
Cited
US3361110A
Cited
US3379173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |